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I am using GRASS 7.6.0 on a CentOS server. I've attempted to run the v.net.steiner function on the map layer with the following properties:

Layer/table: 1/network
type       count        min        max
point          0          0          0
line       33893          1      32592
boundary       0          0          0
centroid       0          0          0
area           0          0          0
face           0          0          0
kernel         0          0          0
all        33893          1      32592
Layer: 2
type       count        min        max
point       3440          1       3461
line           0          0          0
boundary       0          0          0
centroid       0          0          0
area           0          0          0
face           0          0          0
kernel         0          0          0
all         3440          1       3461

When running v.net.steiner I recieve an error as follows:

v.net.steiner input=network arc_layer=1 node_layer=2 terminal_cats=0-3461 output=steinerout
Number of terminals: 3437
Number of Steiner points set to 3435
Building graph...
Registering arcs...
 100%
Flattening the graph...
Graph was built
ERROR: Terminal at node [30981] cannot be connected to terminal at node
       [2269]

Wondering why this might be happening.

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